Numeerical Methods

Question 1
The minimum positive integer p such that 3p modulo 17 = 1 is
A
5
B
8
C
12
D
16
       Engineering Mathematics        Numeerical Methods       Gate 2007-IT
Question 1 Explanation: 
According to Fermat's little theorem,
ap-1 mod p = 1
Here, p = 17
So, p-1 = 16 is the answer.
There is 1 question to complete.